| Bakterien | bacteria |
| Bänderung | harness |
| Barcode | bar code |
| Barterlass | decree regulating the use of full face masks for users with beards |
| Bauartkennzeichnung, typidentische Kennzeichnung | type identifying marking |
| Baugruppe | sub-assembly |
| Baumusterprüfung | type approval test |
| Bazillen | bacilli |
| Beanspruchung | strain |
| Beatmungs- und Inhalationsgeräte | respirators and inhalers |
| Bedienungsanleitung | instructions for use |
| befähigte Person | authorized person |
| Beflammung | flame engulfment |
| Behaglichkeit | comfort |
| Behältergerät | breathing apparatus |
| Behältergerät mit Druckluft | self-contained open-circuit compressed air breathing apparatus |
| Behältergerät mit Druckluft -Kurzzeit-Pressluftatmer | self-contained open-circuit compressed air breathing apparatus – short duration |
| Behältergerät mit Druckluft –mit Normaldruck | self-contained open-circuit compressed air breathing apparatus (normal pressure) |
| Behältergerät mit Druckluft –mit Überdruck | self-contained open-circuit compressed air breathing apparatus (positive pressure) |
| Beißzapfen | teeth bites |
| Belastung | load |
| Belastungsübung | stress exercise |
| Belastungswerte | stress values (during stress exercises) |
| Bergen | to recover |
| Berstfestigkeit | bursting strength |
| Berufsgenossenschaftliche Grundsätze | principles laid down by the trade cooperative association |
| Berufsgenossenschaftliche Regel | control measures set by the trade cooperative association |
| Berufskrankheiten | occupational diseases |
| Bestandsnachweis | inventory record |
| Betriebsanweisung | instructions for use |
| Betriebsbedingung | operating condition |
| Betriebsarzt | company physician |
| Betriebsdruck | operating pressure |
| Betriebssport | company-facilitated sports activities |
| betroffener Atemschutzgeräteträger | wearer of respiratory protective devices affected |
| Bevölkerungsschutz | civil defense |
| Beweglichkeit | mobility |
| Bewegungsmelder | motion distress unit |
| Bewegungs(los)melder | motionless sensor |
| Bewertung | evaluation (also: target-performance comparison) |
| Bewußtlosigkeit | unconsciousness |
| BF | professional fire brigade |
| Biegerissfestigkeit | flex cracking resistance (chemical protection suit) |
| Biegerissfestigkeit bei -30° C | flex cracking resistance at -30 °C (chemical protection suit) |
| Biologische Arbeitsplatztoleranzwert | biological occupational exposure limits at workplace |
| Biologische Arbeitsstoffe | biological occupational exposure substances |
| Biologische Grenzwerte | biological limit values |
| Blasebalg | bellows |
| Blitz – Mann in Not | flash – person in danger |
| Blitz – Mayday | flash – mayday |
| Blut | blood |
| Blutdruck | blood pressure |
| Blutdruckabfall | hypertension |
| Blutgase | blood gases |
| Blutgefäße | blood vessels |
| Blutgift | blood gas |
| Bluthochdruck | hypertension |
| Blutkreislauf | blood circulation |
| Blutplättchen | thrombocyte |
| Bodycheck | body check |
| Body-Maß-Index | Body-mass-index BMI |
| BOS | authorities and organizations with protective functions |
| Brandcontainer, gasbetrieben | fire container, operated with solid fuels |
| Brandfluchthaube | fire container, operated with gas |
| Brandhaus | smoke hood |
| Brandhaus | fire house |
| Brandrauch | fume |
| Brand-Trainingszentrum | fire simulation center |
| Brandübungsanlage | fire-fighting training center |
| Brandübungsanlage | fire-fighting training<s> </s>plant center |
| Brandursachenermittlung | post-fire investigations |
| Brennen | Training galleries – accident prevention |
| Brennen | burn |
| Bronchien | spectacles |
| Bronchien | bronchial tubes |
| Bypass-Ventil | bypass valve |
